Flutes are aerophones. An aerophone (/ËÉÉroÊfoÊn/) is any musical instrument that produces sound primarily by causing a body of air to vibrate, without the use of strings or membranes, and without the vibration of the instrument itself adding considerably to the sound. Aerophones categorically comprise the largest and most complex group of instruments in the Americas.
The last ten miles of Peters Mountain is wholly within Alleghany County, Virginia. The elevation varies from 3,000 to 4,000 feet, with the highest point, near Zenith, reaching 4,050 feet. Peters Mountain, long a barrier to transportation, is crossed only by State Route 311 and the old Salt Sulphur Turnpike.
On 6/22/1981, a category F3 (max. wind speeds 158-206 mph) tornado 9.5 miles away from the town center injured 3 people and caused between $5000 and $50,000 in damages. Petersham-area historical earthquake activity is near Massachusetts state average. It is 89% smaller than the overall U.S. average.